package baseclass.j_dp.dp.oneZeroBag;

import java.util.*;

/**
 * @date 2020/3/2 22:25
 */
public class Demo {
    private static transient Object[] elementData;
    public static void main(String[] args) {
        LinkedList<Integer> list = new LinkedList<>(Arrays.asList(1,2,3));
        System.out.println(list.pop());
        Map<Integer,String> map = new HashMap<>();
        System.out.println(map.get(null));
        Set<Map.Entry<Integer, String>> set = map.entrySet();



    }
}
